#include <stdio.h>

int main()
{
    // 条件表达式 是为了简洁的需要
    printf("%d\n",5>4?100:200);
    printf("%d\n",5<4?100:200);

    int a = 4;
    int b = 5;
    int c = 100;
    int d = 200;
    printf("%d\n", a>b?c:d>55?10:20);
//    printf("%d\n", a>b?c:(d>55?10:20));
//    printf("%d\n", a>b?c:10);
//    printf("%d\n", 10);
    return 0;
}
